I think it was around day 30, the game is a lot easier if you just get the payday loan from the beginning every chance you get. As for the spelling mistakes, I'm not supposed to judge just the gameplay (which is good) but rather the whole game, which includes the presentation (which is lacking at times). The ad upgrades sometimes had a daily cost very far in the negatives so I wouldn't be surprised if the issue is an integer overflow, in which case, what did you make this in? Most interpreted languages scale things like integers and arrays when they're too large and I'm assuming this isn't made in something like c++
I would also like to say that you have been rather condescending and negative in your comments on other games in this gamejam. You can give constructive criticism, but "If 4 people with an entire competition can't get walking right, perhaps its time to reconsider this whole GameJam thing" is just a shitty sarcastic remark and it has no place in a friendly competition like this. The harsher you are on the others participating in this gamejam, the harsher your game will be reviewed. Be more kind and helpful from now on please.